Jim Keller is a microprocessor engineer most well known for his work at AMD and Apple, he was involved in designing which 32-bit package on package (PoP) system-on-a-chip (SoC) designed by Apple Inc. and manufactured by Samsung? 
Apple A4
-1
Section::::Abstract.
Jim Keller (engineer)
46696887
-1
Section::::Abstract.
Apple A4
25970620